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78
Functions
| Installation and commissioning manual | 1SFC132081M0201
7.3 Torque
ramp
When using the Torque ramp, the Softstarter controls
the output voltage so that the output torque follows a
specified optimal torque curve during start and stop
ramp.
For Torque start ramp there are 4 different adjustable
torque curves. See description of torque profile
parameters for examples on when to use which curve.
The curves are:
• Constant
• Linear
• High
inertia
• Progressive
When using the Torque start ramp, the acceleration is
constant if the set torque curve is the same as the actual
load curve. The output voltage does not increase linearly
like when using the voltage start ramp, see
Figure 7.4
.
The Torque ramp makes the equipment that the motor
drives stop much softer than the Voltage start ramp.
For Torque stop ramp there is one fixed torque
curve. This fixed torque curve is optimized for pump
applications.
Figure 7.4
Torque start ramp
1SFC132081M0201
rpm
Time
Start
U
Time
Start
7
Содержание PSTX Series
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Страница 16: ...16 Quick start Installation and commissioning manual 1SFC132081M0201 2...
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Страница 36: ...36 Installation Installation and commissioning manual 1SFC132081M0201 4...
Страница 50: ...50 Connection Installation and commissioning manual 1SFC132081M0201 6...
Страница 72: ...72 Human machine interface HMI Installation and commissioning manual 1SFC132081M0201 6...
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Страница 144: ...144 Functions Installation and commissioning manual 1SFC132081M0201 7...
Страница 148: ...148 Communication Installation and commissioning manual 1SFC132081M0201 8...
Страница 156: ...156 Maintenance Installation and commissioning manual 1SFC132081M0201 9...
Страница 168: ...168 Troubleshooting Installation and commissioning manual 1SFC132081M0201 10...
Страница 176: ...176 Wiring and application diagrams Installation and commissioning manual 1SFC132081M0201 11...
Страница 181: ...1SFC132081M0201 Installation and commissioning manual Third party licenses 181 12...
Страница 183: ...1SFC132081M0201 Installation and commissioning manual Revision 183 13...
Страница 187: ...1SFC132081M0201 Installation and commissioning manual Index 187 14...